Combined type-writing and computing machine.



H. HANSON. COMBINED TYPE WRITING AND COMPUTING MACHINE APPLICATION FILEDAPR-9.1915

Patented Jan. 21, 1919.

3 SHEETS-SHEET I.

I N VE N TO FU Ward 14M BY ATTOR Y.

H. HANSON. COMBINED TYPE WRITING AND COMPUTING. MACHINE.

APPLICATION FILED 'APR. 9, I915.

Patented Jan. 21,1919.

INVENTOFU ATTORy.

a SHEETSQSHEET 2.

W|TNESSES= UNITED STATES PATENT HANS HANSON, OF HARTFORD, CONNECTICUT,ASSIGNOR, BY MESNE ASSIGIIlIE"' S,

TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, 1%. Y., A CEO-EPO-RATION OF NEW YORK.

COMBINED TYPE-WRITINGAND COMPUTING MACHINE.

Application filed. April 9, 1915.

To all whom, it m w concern:

Be it known that I, Hans Hanson, a citizen of the United States,residing in Hartfold, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements in'lypelVi-iting' and Computing Machines, of which the following is aspecification.

My invention relates to computing machines, and is herein disclosed asan improvement on my Patent No. 816,319, dated March 27, 1906, whereinis disclosed a combined typewriting and computing machine in which thenumeral keys of the typewriter, when perated in an adding column orzone, set up on a temporary register the digits as they are printed.From this register the digits set up are carried into computing oradding wheels by means of a general operator, which, after carrying insaid digits, erases all the set-up digits.

Said machine is more particularly disclosed in said patent as includinga set of denominational bars, there being one bar for each of the wheelsin which adding is done, and on each of these bars is an array of digitpins, there being one pin for each digit on each bar. These barsnormally stand in such a positioi that the numeral keys operate idlywith res p ct to the bars and pins on the bars. In the adding zone,however, the bars are moved one at a time into such a position thatpin-setting bars operated by the numeral keys of the typewriter will beeffective to set up pins on any bar which has been moved within range ofthe pin-setting bars.

In said patent the pins are set up by being depressed from their normalpositions to a lower position in which the lower ends of the pinsproject below the surface of the bars, and these projected ends areutilized to drive the bars to turn the computing wheels, the amount ofturning of a wheel depending on what pin is set on its bar. For thusturning the, computing wheels, there is provided in said patent,ageneral operator which underlies the bars and when actuated, comesforward and drives forwardly each bar to turn the computing .wheel, thegeneral op erator driving each barby catching the depressed end of anypin thereon. All of these i'eatures are utilie ed in the machine towhich the presentinvention is shown as applied.

The present machine is further shown as Specification of Letters Patent.

Combined subtraction bar are the counts-lio s betw Patented lan. 21.,Serial No. 20,130.

one which is adapted to do subtracting on the same computing wheels, andis partly of the type shown in my co-pending application No. 626,550,filed May 11, 1911, wherein the subtraction is done by the complementarymethod. In said method of subtraction, the wheels always turn as itforadding, but the subtrahend, instead of being directly subtracted fromsaid wheels, is set up by the numeral keys of the typewritcr as by pinsrepresenting numbers complementary to those which are being printed assaid subtiahend. In other words, if it desired to subtract 3, (5 is setup and added; it it is desired to subtract 0, 9 set up and added; and soforth and so on. This method of subtraction requires-a diiicreut settingup of the pins. One (way of doing this is shown insaid application No.626,550, wherein there is a subtraction key for causing the machine tosubtract instead of add. When this subtraction key is made eiiective, itnot only connects the numeral keys to the pin-sctting devices in 'such away that the" ct up C021!- plementary pins, but it also scs .p a 5 pinon every pin bar, this being done because if 0 is subtracted in anydenom nation, 9"

must be added in that denomination, thi' or not.

Said subtraction bar also brings into play a special computing baradapted to add a single unit to the computing wheel at the units placeor column, thus correcting the well-known error of l in the unitscolumn. Among the connections operated by said connected to the addingpin-set whenever the subtraction lzey is act-nu said bars aredisconnected from their am.

rock shafts, and are connected to rock shafts operated by numeral keyscomplementary in value to the adding shafts. Thus, for example, the 3rock shaft in subtracting will be operated by the 6 numeral key, andvice versa and so forth.

My invention is therefore disclosed herein as applied, for thepurpose'of illustration, to such a machine, certain features of it beingespecially adapted to cooperate with machines of the type previouslybuilt, while other features are. adapted to give results broadly new.

One of the new features which my present invention is especiallydirected to, is to provide means for the correction of errors easily andrapidly. For this purpose, in the present disclosure, I have illustratedhow such error-correcting i'nechanism can be incorporated in machines ofthe general type of my aforesaid patentv and application.

One of the features which isof particular value is that one whichperinits an operative in correcting an error to simply reset thetypewriter carriage at the denomination in which the error occurs, andafter the carriage has been so reset, the operative may correct theerror by merely striking the cor; rect key, without the trouble oferasing any previous setting of the computing mechanism. This is hereinillustrated as accomplished by enabling the setting of any pin on onebar to unset any previously set pin on that bar.

()ne of the other advantages attained by my present in'iproven'ients isthe simplification of the structure shown in my prior patent andapplication. 7

Other features and advantages will hereinafter appear.

ln the accompanying drawings,

Figure 1 is a sectional side viewof an Underwood-l lanson combinedtypewriting and computing machine, showing so much of the mechanism asis convenient for illust'ating my invention as applied thereto.

Fig. 2 is a similar view, on an enlarged scale, of certain features ofthe subtractionsetting mechanism.

Fig. 3 is a side view, partly broken a way. of a pin bar showing the 5pin set,

Fig. l is a similar View showing the 7 pin being set and displacing the15" pin which has been previously set.

Fig. 5 is a sectional view showing a pin and its mountings in a pin bar.

Fig. 6 is a dissected view of some of the principal parts of a pin bar.

Fig. 7 is a perspective view of a pin.

Fig. 8 is a perspective view of the princt pal part ofa pin bar.

Fig. 9 is a plan .view 0%,thqfbin-setting bar connections in additionposition.

' Fig. 10 is a similar view il subtraction positioi 4 Fig. 11 is adetail of the pin and latch structure.

In the usual Underwood-Hanson combined typewriting and computingmachine, numeral keys 1 and alphabet keys 2 mounted on the front ends ofkey levers 3, when depressed, swing type-bars 4 upwardly and rearwardlyby means of bell-cranks or st ll levers 5, soi that types 6 on saidtype-bars print as usual on the front side of a platen 7. Said platenforms part of the platen frame 8 mounted in the usual Underwoodtypewriter carriage 9,and said carriage is normally under tension,tending to draw it along in letter-feeding direction. the tension beingsupplied by the usual springbarrel (not shown herein).

The typewriter carriage is fed along a single letter-space at a time bymeans of the usual universal bar 10, which is adapted to be struck byheels 11 on the type-bars as they approach the platen, so that saiduniversal bar will be vibrated r arwardly at each key-stroke and causedogs 12 to alternatively engage the usual escapement wheel 13, andpermit said wheel to turn a step at, a time. This escapement wheel isconnected to the usual pinion 14, which meshes with the usual rack bar15 connected to the typewriter carriage.

The typewriter carriage is adapted to be positioned by the usualUnderwood tabu lating keys 16, which operate the usual plungers 17, sothat column-stops 18 on the typewriter carriage are enabled tocoiiperate with the upper-ends of said plungers, which act ascounterstops. The remaining con nections of the tabulating keys 16 maybe of the usual Underwood type, and are notshown in the present drawingstor the sake of clearness.

The numeral keys 1 of the typewriter whenever depressed, in an addingzone. not only print the digits upon tl c platen 7, but, also set themup on dcnominational pin or computation bars 20 one after another. Thedigits are set up on' these computation bars by depressing on each barone of nine pins 21, and after a number has thus been com-.

pletely set up and printed, the said number may be carried into the.usual Under ood l-lanson/ adding wheels 22 by means of the usual handle23 which is drawn forward to effect this operation. The adding wheels 22lltLY? associated with them the usual carryover devices shown in saidHanson patent, but omittedin the present drawings for the sake ofsimplicityl To enable the numeral keys 1 to set the pins 21, there isprovided for each numeral key a pin-setting bar 2% which is connected toa rock shaft 25 operated by its numeral key through connectionsanalogous to. those shown in my prior patent described above; saidconnections being shown at Fig. 9, and

menses nect-ing said bar to the corresponding end of its cross bar 28.

Whenever a numeral hey is depressed, whether in the adding zone or not,a pendantextending from said key ihrough casing 31 of the addingmechanism prooer, descend-s and strikes a wrist 32 fast on roclr shaft25, thus rocking said shaftand thrustpins 21 are normally out ofalinement with their pin-setting bars 2%, out are adapted to be movedinto alinenient therewith one after another byihe typewriter carriage assaid carriage travels along through the adding zone. For this purposeeach columnstop 18 is provided with a oneovay denomination-selecting cam33, which is always effeo tive in the adding zone on one and one only ofseveral. upstanding denomination bars 34, so that in the adding zone oncdenomination bar 342 is cammed rearwardly, with the result that theopposite lower end of said bar is moved forwardly. This bar in movingforwardly, shifts its computation bar 20 Sllillciently forward to bringthe pins thereon under the pin-setting bars 24, though owing to lostmotion the computing wheel does not turn appreciably. This brings aboutthe result that if any niuneralkey l is depressed, while one computationbar is thus moved forwardly, the pin 21 thereon corresponding to thatparticular numeral key will be moved from its upperinost position to alower position where "said pin will 'be latched down by its led e' 36,which catches under a reciprocating latch bar 37, which holds it down;

one pin in Fig. 3 being shown thus latched down.

Since the typewriter carriage travels to the left and thus interceptsthe right-hand bar 3% first while at the same time the typewriter isprinting the left-hand numeral, connections are provided whereby therighthaud bar 3% operates the left-hand lower end in the series, theleft-hand bar operates "the right-hand end etc. The connections fordoing this include bails 38 of which one form is shown in my co-pendingapplication comb i-O.

Since the numeral keys of the typewriter in writing numbers print digitsranging from 0 up to 9, there are provided nine pins 21 and in additionMi 0 pin 41, salt 0 pin bein operated by the ZGZ'Q lrey of thetypewriter:

The latch bar 37, which holds the pins 21 down, is universal to all saidpins ill and is formed in the shape of a bar adapted to lie on. the fiatupper surface of pin-cage l8 on the-bar :20, Said latch bar 37 is heldin place by 'nieans of pins 59 which in turn are held in place by anll-plate %2 attached to said pin bar and overlying the snriace thereof,and being provided "able openings t project so that through which thepins 1 he plate straddles each The teeth of the L-p ila't faced cut-outportic pins 21, so as to limit i. movement thereof, thereby frombecoming displace bars, and also preventing ins.

The pin bar 20 not only includes a comparat-ively thin rearwardextension i l but also a thin forward I, said lastnanied extension. carrrack 9:6 by which the numeral are turned, said rack constantly meshingwith a pinion it connected by a pawl and ratchet, as shown in my patentaforesai to the numeral wheels 22. 'l. he rack meshes with the pinion r2suiliciently loosely to allow for the necessary forward setting of thepin bars 20 in the pin-setting op ration.

The pins 21 are carried in e pin-cage i8 forming part of the computationbar 20, and the pins are advantageously cylindrical and work incylindrical bores 49 in said pincage. Each pin is normally held in itsuppermost position by means or a spring 50, which bears against a neck51 at the bottom of the bore i9, said neck forming a bearing -for thepin 21, and each pin bears against its spring by means oi a ledge orcollar 52 which fits in the enlarged main portion of the hole 19'.

Whenever any pin is depressed, it, as above described, moves theuniversal latch 37. This latch comprises arms in f ont of or ry pinhaving cam faces 53 normally lying against and facing a com or inclinedplane 5% extending inwardly from the outer edge of the, ledge 36, oneach of'the pi s This inclined plane 5% therefore whenever its pinproject into each of the oand-down 21 is depressed, forces the latch 3?forward so that the arms of said ltch w practically slip clear of theledge 52% on every other pin. on its bar, thus releasing: any oihor pinwhich has been. previously ting that pin to rise. To is in thus risingwhen release cludes a short reverse inclin 55, which permits only pin toversal latch 37 a sli if necessary, to co The latch 37 is 1 1., L pfuilltd turning; of the lever 64 bears.

wardly by means of a spring 56 anchored therein and lying within acut-away portion 57 of the pin-cage 48, said cut-away portion includinga post 58 on which the spring 56 draws. The universal latch 37 is guidedby two flat-headed pins 59 which are fast on the pin cage 48 and formguides for the latch 37, which. is provided with slots 60 at itsopposite ends toengage the pins 59. These pins 59 underlie the L-plate42.

When it is desired to perform subtraction, the operative pushesrearwardly a subtraction bar 61 which extends through the front of thecasing 31 and is pivoted to an idle rock arm 62 near the rear of thecasing.

Whenever the subtraction bar 61 is thus pushed rearwardly, a pin 63thereon strikes a lever er to shift the rock shafts 25 from their normaladding position to the subtraction position shown in Fig. 10. in thissubtraction position, the rock shafts release the pin-setting bars andtheir linkages, from the adding wrists26, and connect said rock shafts25 to the complementary linkages by means of subtraction wrists 65 whichcooperate with subtraction lugs 66 on the corresponding complementarybars 28.

The lever 64: shifts the rock shafts 25 thus by means of a swingingplate 67 which engages notches 68' in said rock shafts, and againstwhich plate the upper end, 69 of the The subtraction bar 61 may then bereleased to be returned by its spring, and the rock shafts 25 willbedetained in their subtraction position by means ,of a pawl 79 whichswings up and engages the plate 68 to hold it where placed by the subtraction bar.

In addition to shifting the rock shafts to their subtraction positions,the subtraction bar 61 when actuated, also is eiiective to set all the 9pins 21 in order to automatirally effect the adding of 9 iii 0 ornothing is to be subtracted from any number. To effect this result, theusual bail or bar 71 ,for setting the 9 pins in theusuaFUnderwood-Hanson subtracting machine is used,

' which bar is pivoted on the framework, car

rying the linkages 24 and normally stands clear of the 9 pins, and'theirconnections. When, however, the subtraction bar "61 is actuated, the 9pin-setting bar is thrust downwardly to the point seen in Fig. 2. inmoving to which position it strikes and depresses the setting levers 72connected to the 9 pins 21, these leversbeing substantially the leversused for restoring thef -9 pins and shown in my co-pending applicationNo. 626,550, referred to. These levers are pivoted each on its own pinbar and each engages its 9 pin by means of a boss 73 on its end, whichlies within aiiat-sided notch 74 formed in the side of its 9 pin. Whenits pin rises, the rear end of any lever 72 strikes against the top ofthe body of the pin-cage 181, on the general menses 48, and thusprevents the spring 50 of the 9 pin'from thrusting said 9 pin entirelyout at the pin-cage 48. lhis enables the slot 75 in the bar 42 to bewidened enough to accommodate the boss 73, because the lever 7 72provides the means for holding the 9 pin in its here. The bar 42 isunable to hold the 9 pin because it is cut away to accommodate the boss72, although said bar holds the. other pins 21 from being thrust up outof their bores as described above.

In order that the present pin-setting device may be adapted for writingand correcting all numbers whether they are limited to the ordinarydigits, or also contain the digit 9, have provided the special zero-pinll p on each har20, said pin being like the pins 21 except that said pin41 cannotbe latched down. Since the pin 41 is a 'zeropin, there is noneed of latching said pin down, because, when 0 is to be computed in anydenomination, the rack bar for that denomination is left standing atrest while the general operator moves forward. Said pin, therefore, isprovided simply with the cam face 5%, and said pin has no ledge 36, butmight be perfectly cylindrical. It is preferably, however, provided witha flat side 77' which cooperates with a flat side 78 in a notch on theL-bar i2, and thus insures that said zero-pin will always hold its camface 54 in the right position to operate the uni-- versal latch 37.

After a number has been set up and. car ried into the computing wheels,the general v operator on its return stroke, carries the rack bars 46reawardly by means of the usual lugs 79 which are struck by the crossbar108 of the general operator on its return stroke. At the very end of thereturn 10 stroke, the general operator restores all the set pins 21 bymeans of the usual pin-restoring plate 80 which may be of the kinddisclosed in my prior patent mentioned above and which is operated by aone-way cam in operator, and other con- Elections described in thepatent to Frederick A. Hart, No. 1,176,364, patented March 21, 1916,filed December 10, 1908, This restoring'plate 80 is effective on aspecial ire-setting pin 82 which projects normally below the bottom ofeach pin-cage 1-8, and is provided with a cam 83, which, whenever thepin 82 is raised, cams the universal latch 37 forwardly, so as torelease 1241 any pin 21 which at the moment held down by said latch. I

The cam 83 is eiiective on the universal latch 37 when the pin 82 islifted, and for this reason, said cam 83 slants in a direction reverseto the cams 54: on the pin 21 and 00- operates with a correspondinglyreversely shaped cam 8 on the universal latch 3?. The pin 82 is normallyretained in this downward position by means of a spring 85 menses n thecore 8% on the pin-cage, in pin 82 is mounted. Said bore a collar 8?near its upper end ich said spring bears, and the the pin 82 is providedwith a s .v fitting the core 86, against '5 bears, to thrust the pin sin82 is prevented from hein thrust up or down out of its bore 88 lo; theguide plate as extending into a fiatced notch on the pin which also actsto prevent the pin from turning. The pin 82 dvantageously projectssomewhatoelow the die-n set, thus insuring that the pinplate 80 will beeffective on said t release the latch 87 before it can ly strike anyother pin 21. en a subtraction operation is finished, general operatorwill automatically reore the parts to their adding position, andpurpose, the machine is provided usu l connections to this end. Said cnsinclude a notch 90 in one of eral operator side bars 91 and in o h thereusually rests idly the de- 1 end on? a releasing lever 93 jourframeworkoi the machine, and so Cari a rock arm 94, said last'named lr arm losingadapted to release the pinirg roclr shafts from the subtraction in,*hich they have previously been The rock arm 94: is effective to do thiss when the general operator comes the lever rides out of the notch therock arm 94 against a @l extending rock arm 95 fast on US which carriesthe pawl 70. Said t-named ai l, it will he rememberechis one which holesthe rock shafts 25 in ieir subtraction position. This releases and theusual spring 97 embracone of the rock shafts 25, restores said s totheir addition position by means e plate iii". construction abovedescribed, it will Jed makes an exceedingly simple assemble since theuniversal malt-e the-operation of the as smooth as possible, the lower smay he cut into the form cam 98 to coiiperate with the cams o5 whichassist in releasing the zero pin 41 there is addition to the usualpin-setzero pin-setting bar 99 which is provided with an addition rockshaft and an addition wrist 100, so that if the digit 0 is Written inadding, the writing of said digit will erase any other digit previouslyset on the bar in the. denomination in use at the moment. i The 0 rockshaft '25 is also provided with a subtraction wrist 101 which isconnected to the pin-setting bar :24 of the 9 pin 21, whenever thesubtraction bar 61 is actuated. This connection is provided so that if adigit is written in any given denomination While subtracting, and saiddigit is erased and the digit 0 printed in place thereof, the printingof said 0 will set the 9 pin 21 in that denomination. For a similarreason, the rock shaft 25 of the 9 key is connected by a subtractionwrist 105 to the pin-setting bar 99 of the zero pin whenever thesubtraction bar 61 is actuated. This is for the purpose of effecting theactuation of the zero pin whenever the 9 digit is printed in subtractionto correct the printing of any other digit, for, as indicated above, atsuch times it is necessary to unset any other pin already set in thatdenomination.

in order to provide for the mounting of these parts, the usual rear bar102 of the frame carrying the pin-setting bars 24 and theirappurtenances is cut-away at 103 to provide for the free operation ofthe Wrist 101 and is also provided with an extension 10 1- on which the9 pin-setting hail 71 may have its shaft journaled.

The bar for adding in one in the units column is omitted for the sake ofclearness.

Variations may he resorted to within the scope of the invention, andportions of the improvements may he used Without others.

Having thus described my invention, I claim:

1. In a computing machine, the combination with a pin bar, of a seriesof pins settable on said bar, a latch slidaole on said bar and placedthereon from one side thereof, and universal to said pins, and a holdingloar overlying said pins and said latch and lying on the same side ofsaid pins as said latch and adapted to hold said latch in positiorv 2.In a computing machine, the combination with a pin. bar, of a series ofpins settable on said bar, a latch slidalole on said bar andplaced-thereon from one side thereof, and universal to said pins. aholding bar overlying said pins and said latch and lying on the sameside of said pins and adapted to hold said latch in position,roundhodies for said pins, and fiat surfaces on said pins for guiding"them against accidental rotation.

2. In a computing machine, the combination with a computation har. of apin settaole on said loar, a body for said pin projecting through saidbar, an enlarged bore in which said pin slides, collaron said universalto said pins,

rcan'i faces on said pins adapted to move said latch to position torelease all other pins when one pin is set to be held by said latch...

4. In a computing machine, the combination with a computation bar, of apin settable' on said bar, a body for said pin projecting through saidbar, an enlarged bore .in which said pin slides, a collar on said pinfitting said bore, a spring confined between said collar and the end ofsaid bore tending to hold said pin in a given position, another pin onsaid bar, a similar bore, a spring coiipcrating with said pin, a latchuniversal to said pins, a spring tending to draw said latch to effectiveposition, cam tacos on said pins adapted to move said latch to positionto release all other pins when one pin is set to be held by said latch,a third pin settable on said bar with which said latch cooperates, and alever engaging said pin and adapted to engage said bar to limit thethrow of said pin in moving from set to nnset position.

in a computing machine, the combination with a computation bar and aseries of pins settable thereon, of a latch universal to said pins, acameo eacl. or" said pins adapted to more said latch parallel to saidar, a spring returning said latch adapted to hold any of said pins set,a guide at each end ot said bar for said latch, and a stop bar overlyingsaid latch and extending between said pins from one side thereof,adapted to hold said latch in position independ entlv of said guides.

6. In a computing machine, the combination with an array of bars, of aseries of pins settable on said bars, a series of pin setting membersadjacent said bars for set ting said pins, a single set of numeral keysfor operating said pin-setting members, levers associated with certainof said pins, a separate key depressible to be eilective on said leversto set their pins, and means whereby the setting of any pin on any barunsets every other pin on said bar.

7. In a computing machine, the combination with ten numeral digit keysranging from 0 to. 9, of pin-setting members movable by said keys, aseries of denominational members each comprising a pin for each of saidkeys, means whereby the setting of any pin on one of said denominationalmembers onsets every other pin on said denominational member, and aseparate key adapt l to set a single pin on each of said.

no ,ational members simultaneously.

.n a computing machine, the combinaneonate tion with ten numeral digitkeys ran 'ng from 0 to 9, of pin-setting mem ers movable by said keys, aseries of denominanominational member, a separate key adapted to set asingle pin on each of said de nominational members simultaneously, andmeans adapted to-release all the said pins simultaneously.

5). In a combined typewriting and com-i puting machine, the combinationwith typewriter digit keys, of computing Wheels, members on which thedigits written by said keys are adapted to be set up, means for carryingthe set-up digits into the computing wheels, a subtraction device, atraveling typewriter carriage for determining into a which wheel theprinted number shall be carried, and means whereby, if a given'nu'mberhas been printed and set up as for a given wheel, the typewritercarriage may be re-positioned and any new digit set up, when thetypewriter carriage is so re-positioned, will erase the digit previouslyset up at that position.

10. In a combined tybewriting and com puting machine, the combinationwith typewriter numeral keys and a traveling typewriter carriage, ofcomputing Wheels, computation members on which the numbers written bysaid keys are temporarily set up, pins on said members for so settingthem up, a universal latch on each member for said pins adapted torelease all other pins when any one pin is set up, a subtraction deviceadapted to set certain of said pins, and connections between said keys,said pins and said carriage, whereby after a digit has been set up bythe setting of any pin, the typewriter carriage may be re-positioned anda new digit set up at said position, and the old digit will be erased.

11. In a computing machine, the combination with a round pin, of acollar on said pin, a head on said pin by which it is set, a cam on saidpin adapted to operate a holding latch, and an auxiliary cam on said'pin adapted to be effective on he same latch when the pin is moving inthe opposite direction.

12. In a computing machine, the combination with a bar, of a round pinon said bar, a latch for holding said pin, a. cam on said pin for movingsaid latch, a cooperatin cam on said latch, said pin having a ledgeadapted'to be engaged by said latch to hold said pin, means for movingsaid latch to release said pin, a second cam on said pin assisting thereleasing movement of said latch, and a second cam on said latchcoiiperating with the last-named cam.

13. The combination with a series of denominatienal ortle, sets eachpins ranging in rainy V a single means for se ins" pins at onee and pinopera enabling;- every pin from te set, to unset the *9? pin in theeerrespemling order when time set.

14. The eernbinatien with nest of pins arranged in order-rows or(leneniination.' including a plurality of pins adapted to be abling the6 key t0 set a pin when subtraetin antl ti, be effective a pm when.adding, a subtiaetio for altering the eonneetiens between and bars teei'ieet SHDU etion, and a pin- Stiflilg bar inatle elfeetire by salesnbtrz'iete reiease tion key to set a pin in eaeh row te enablesubtraction m be effected.

15. The combination with a nest of pins arranged in erilers ordenominations representing a series of ascending ."i-LiUSS from 0 up. ofa setting mechanism for all said pins, edditionni setting nieehai:n'peenliar ,to all of the pins of highest n *nete value of the severalorders oniieneminations tn set them all at once, and pin operated 0011-sections enabling the pins of inner values when set, to unset, one byone, the pins of highest ultimate value in the same orders.

it The combination with a nest efpins arranged in order-rows 0rdenominations, ineiutling a plurality of pins adapted to be setrepresenting the digits from It to 9, and also a 0 pin, of connectionsbetween saizi pins enabling some of the pins to determine the status ofothers of the pins, a series of digit-keys ranging, from 0 to 9,()1(ldl'l.)di'S for operating said pins, and connections between saidbars andsaid keys enabling the 0 key to set a pin when subtracting andto be effective only to relense a pin when adding.

l7. In a computing machine, the combinatien with a series of pin bars,each having pins thereon ranging from 1 to 9, of means forsimultaneously setting all the 9 pins to cause the maehine to beefieetive to subtract, keys for setting all the pins from 27' to 9,connections whereby the setting of a 9 pin unsets any set pin, a Zeronumeral key, and a pin operated by said zero numeral key for operatingsai l eenneel'ions to unset any set pin.

HANS HANSON. Witnesses VV. 0. Wns'rPHAL, JULIUS DUGKSTIML

